What is the ruling on taking a loan from Al Baraka Islamic Bank to buy an apartment, given the inability to purchase it without a loan, and does the ruling on necessities apply to this case, and what is the ruling on taking a loan from other non-Islamic banks?

It is not permissible to take an interest-based loan to buy a home or anything else, except in cases of dire necessity. There is no difference in the prohibition of an interest-based loan between Islamic banks and conventional banks, because all usury is forbidden by Islamic law and is one of the major sins. If a person is compelled to take an interest-based loan, he must adhere to the limit of necessity and not exceed its scope. The Islamic Research Academy has issued a fatwa stating that interest on loans is prohibited usury, which is not permitted by need or necessity except in the narrowest of limits, and that the borrower is absolved of sin if necessity compels him to it. If Al Baraka Bank will provide a Qard Hasan (interest-free loan) or a Sharia-compliant Murabaha transaction, then there is no harm in dealing with it, and in such a case, it is not permissible to resort to other interest-based banks. It is the Muslim's duty to minimize harm if it cannot be completely avoided.